EP 2837450 B1 20190320 - Clamping device
Title (en)
Clamping device
Title (de)
Spanneinrichtung
Title (fr)
Dispositif de serrage
Publication
Application
Priority
EP 13180654 A 20130816
Abstract (en)
[origin: JP2015036191A] PROBLEM TO BE SOLVED: To make a chuck structure for a lathe or a miller compact.SOLUTION: A chuck structure comprises a power chuck for fixing a tool or a workpiece, and a chuck jaw of the chuck structure may be adjusted in an axial direction of the chucking structure, and the chuck jaw may be operated by a pulling and/or pushing rod 11 rotating together in utilization time of a machine tool. At the time, axial direction movement of the pulling and/or pushing rod 11 is performed by an electric motor 12 disposed coaxially the pulling and/or pushing rod 11. On the other hand, when the machine tool is in utilization means, the electric motor 12 does not rotate with the pulling and/or pushing rod 11, and transmission device means 13 rotates with the pulling and/or pushing rod 11, and a coupling device 14 is also provided, and the electric motor 12 is coupled with the transmission device means 13 in a torque cutoff state if necessary, thereby axial direction force to the pulling and/or pushing rod 11 is acquired.
IPC 8 full level
B23B 31/28 (2006.01); B23B 31/12 (2006.01)
CPC (source: EP)
B23B 31/28 (2013.01); B23B 2260/044 (2013.01); B23B 2260/084 (2013.01); B23B 2260/11 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2837450 A1 20150218; EP 2837450 B1 20190320; JP 2015036191 A 20150223
DOCDB simple family (application)
EP 13180654 A 20130816; JP 2014166255 A 20140818